# US 2014/0155815 A1 · Recovery catheter assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0155815 A1 - Document ID: US20140155815A1 - Status: Published application - Kind: A1 - Application number: 14/172,534 - Filed: 2014-02-04 - Published: 2014-06-05 - Earliest claimed: 2010-03-06 - Assignees: Nfusion Vascular Systems, LLC - Applicants: Nfusion Vascular Systems, LLC - Inventors: Richard Eustis Fulton, III; Richard Lotti - Web page: https://patentgrep.com/patent/US20140155815A1 ## CPC - A61M 25/1018: {Balloon inflating or inflation-control devices} - A61B 17/12036: {partial occlusion} - A61B 17/12045: {double occlusion, e.g. during anastomosis} - A61B 17/12109: {in a blood vessel} - A61B 17/12136: {Balloons} - A61B 17/12168: {having a mesh structure (A61B17/1214 takes precedence)} - A61B 17/12172: {having a pre-set deployed three-dimensional shape (methods of manufacturing A61B2017/00526)} - A61M 1/34: Filtering material out of the blood by passing it through a membrane, i.e. hemofiltration or diafiltration - A61M 1/3403: {Regulation parameters} - A61M 1/36: Other treatment of blood in a by-pass of the natural circulatory system, e.g. temperature adaptation, irradiation {; Extra-corporeal blood circuits} - A61M 1/3615: {Cleaning blood contaminated by local chemotherapy of a body part temporarily isolated from the blood circuit} - A61M 1/367: {Circuit parts not covered by the preceding subgroups of group A61M1/3621} - A61M 25/0074: {Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable} - A61M 25/0082: {Catheter tip comprising a tool} - A61M 25/04: in the body, e.g. expansible {(A61M25/10, A61M16/0488 take precedence)} - A61M 25/1011: {Multiple balloon catheters} - A61M 60/13: by means of a catheter allowing explantation, e.g. catheter pumps temporarily introduced via the vascular system - A61M 60/216: including a rotating member acting on the blood, e.g. impeller - A61M 60/31: for enhancement of in vivo organ perfusion, e.g. retroperfusion - A61M 60/36: for specific blood treatment; for specific therapy - A61M 60/554: of blood pressure - A61M 60/861: Connections or anchorings for connecting or anchoring pumps or pumping devices to parts of the patient's body - A61B 5/02152: {specially adapted for venous pressure} - A61B 2090/065: {for measuring contact or contact pressure} - A61F 2/013: {Distal protection devices, i.e. devices placed distally in combination with another endovascular procedure, e.g. angioplasty or stenting} - A61M 1/3679: {by absorption (A61M1/3675 takes precedence)} - A61M 25/007: {Side holes, e.g. their profiles or arrangements; Provisions to keep side holes unblocked} - A61M 60/113: in other functional devices, e.g. dialysers or heart-lung machines - A61M 60/148: in line with a blood vessel using resection or like techniques, e.g. permanent endovascular heart assist devices - A61M 60/833: Occluders for preventing backflow - A61M 2025/1015: {having two or more independently movable balloons where the distance between the balloons can be adjusted, e.g. two balloon catheters concentric to each other forming an adjustable multiple balloon catheter system} - A61M 2025/1052: {for temporarily occluding a vessel for isolating a sector} - A61M 2025/1097: {with perfusion means for enabling blood circulation only while the balloon is in an inflated state, e.g. temporary by-pass within balloon} - A61M: DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY (introducing media into or onto the bodies of animals A61D7/00; means for inserting tampons A61F13/26; devices for administering food or medicines orally A61J; containers for collecting, storing or administering blood or medical fluids A61J1/05); DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY (surgery A61B; chemical aspects of surgical articles A61L); DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR {(Electrotherapy, e.g. producing anaesthesia by the use of alternating or intermittent currents A61N1/36021)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract An example of recovery catheter assembly comprises an actuator element and a mechanically radially expandable and contractible recovery device operably connected to the actuator element. The recovery device has proximal and distal blocking portions and a central portion therebetween. The recovery device is at least partially placeable in a first, radially collapsed configuration and in a second, radially expanded configuration by manipulation of the actuator element. When in the second, radially expanded configuration, the proximal and distal blocking portions have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion. ## Claims ### Claim 1 A recovery catheter assembly comprising: a first actuator element; a second actuator element; a mechanically radially expandable and contractible recovery device operably connected to the the first actuator element and the second actuator element, the recovery device having a proximal end operably connected to the first actuator element and a distal end operably connected to the second actuator element; the recovery device comprising: proximal and distal blocking portions at the proximal and distal ends thereof; and a central portion between the proximal and distal blocking portions; the recovery device at least partially placeable in a first, radially collapsed configuration and in a second, radially expanded configuration by manipulation of the first actuator element and the second actuator element so that when in the second, radially expanded configuration the proximal and distal blocking portions have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion, the manipulation of the first actuator element and the second actuator element comprises movement of the first actuator element and the second actuator element with respect to the recovery device. ### Claim 2 (depends on 1) The assembly according to claim 1, wherein the recovery device is fully placeable in the first, radially collapsed configuration, and in the second, radially expanded configuration, by manipulation of the first actuator element and the second actuator element. ### Claim 3 (depends on 1) The assembly according to claim 1, wherein the recovery device comprises a mesh braid. ### Claim 4 (depends on 3) The assembly according to claim 3, wherein the recovery device comprises a proximal wire set securing the proximal end to the distal portion of the first actuator element, and the proximal wire set comprises a plurality of radially and axially extending elements, said radially and axially extending elements being extensions of said mesh braid. ### Claim 5 (depends on 3) The assembly according to claim 3, wherein the recovery device comprises a proximal wire set, securing the proximal end to the distal portion of the first actuator element, and a distal wire set, securing the distal end to the proximal portion of the second actuator element, each of the proximal and distal wire sets comprises a plurality of radially and axially extending elements, said radially and axially extending elements being extensions of said mesh braid. ### Claim 6 (depends on 3) The assembly according to claim 3, wherein the collection chamber is defined by the proximal and distal blocking portions and the central portion comprises an elastomeric material on said mesh braid. ### Claim 7 (depends on 1) The assembly according to claim 1, wherein: the recovery device comprises proximal and distal toroidal blocking balloons at the proximal and distal ends of the recovery device; the recovery device is placeable in the first, radially collapsed configuration when (1) the blocking balloons are in deflated states, and (2) the first actuator element and the second actuator element are in a collapsed actuation state; and the recovery device is placeable in the second, radially expanded configuration when (1) the blocking balloons are in inflated states, and (2) the first actuator element and the second actuator element are in an expanded actuation state. ### Claim 8 (depends on 1) The assembly according to claim 1, further comprising: a hollow recovery catheter having a sidewall and defining a recovery lumen. ### Claim 9 (depends on 8) The assembly according to claim 8, further comprising: a lateral passageway extending through the central portion of the recovery device and the sidewall of the recovery catheter, the parts of the proximal and distal blocking portions and the central portion at least partially defining the collection chamber being liquid impervious with the exception of the passageway; whereby liquid in the collection chamber can pass through the passageway and into and through the recovery lumen. ### Claim 10 (depends on 9) The assembly according to claim 9, wherein: the recovery catheter comprises proximal, intermediate and distal portions; the lateral passageway is located along the intermediate portion of the recovery catheter; a blood pump located along the distal portion of the recovery catheter; and a filter element located along the distal portion of the recovery catheter for filtering out at least one agent from fluid flow through the recovery catheter lumen. ### Claim 11 (depends on 8) The assembly according to claim 8, further comprising: a first pressure sensor at the collection chamber; a second pressure sensor positioned distal of the recovery device; a filter element and a pump operably coupled to the recovery catheter to pump fluid through the recovery catheter and filter fluid passing through the recovery catheter; and the pump operably coupled to the first and second pressure sensors to permit control of the pressure within the collection chamber during use. ### Claim 12 (depends on 8) The assembly according to claim 8, further comprising: a filter element and a pump operably coupled to the recovery catheter to pump fluid through the recovery catheter and filter fluid passing through the recovery catheter; a pressure sensor proximal to the pump; and the pump operably coupled to the pressure sensor to permit control of the pressure within the collection chamber during use. ### Claim 13 (depends on 1) The assembly according to claim 1, wherein the recovery device defines a return channel between the proximal and distal ends when in the second, radially expanded configuration. ### Claim 14 A recovery catheter assembly comprising: one or more actuator element; a mechanically radially expandable and contractible recovery device operably connected to the one or more actuator elements, the recovery device having proximal and distal ends operably connected to the one or more actuator elements; the recovery device comprising proximal and distal blocking portions at the proximal and distal ends thereof; and a central portion between the proximal and distal blocking portions; the recovery device at least partially placeable in a first, radially collapsed configuration, and in a second, radially expanded configuration, by manipulation of the one or more actuator elements in operable connection with the recovery device so that when in the second, radially expanded configuration the proximal and distal blocking portions have radial dimensions greater than the radial dimension of the central portion thereby at least partially defining a collection chamber at the central portion, the manipulation of the one or more actuator elements comprises movement of the one or more actuator elements with respect to the recovery device. ### Claim 15 (depends on 14) The assembly according to claim 14, wherein the recovery device is fully placeable in the first, radially collapsed configuration, and in the second, radially expanded configuration, by manipulation of the one or more actuator element. ### Claim 16 (depends on 14) The assembly according to claim 14, wherein the recovery device comprises a mesh braid. ### Claim 17 (depends on 16) The assembly according to claim 16, wherein the recovery device comprises a proximal wire set, securing the proximal end to the distal portion of a first actuator element, and a distal wire set, securing the distal end to the proximal portion of a second actuator element, each of the proximal and distal wire sets comprises a plurality of radially and axially extending elements, said radially and axially extending elements being extensions of said mesh braid. ### Claim 18 (depends on 16) The assembly according to claim 16, wherein the collection chamber is defined by the proximal and distal blocking portions and the central portion comprises an elastomeric material on said mesh braid. ### Claim 19 (depends on 14) The assembly according to claim 14, wherein: the recovery device comprises proximal and distal toroidal blocking balloons at the proximal and distal ends of the recovery device; the recovery device is placeable in the first, radially collapsed configuration when (1) the blocking balloons are in deflated states, and (2) the one or more actuator element are in a collapsed actuation state; and the recovery device is placeable in the second, radially expanded configuration when (1) the blocking balloons are in inflated states, and (2) the one or more actuator element are in an expanded actuation state. ### Claim 20 A recovery catheter comprising mechanically radially expandable and contractible blocking portions at the proximal and distal ends thereof, wherein mechanically radially expandable and contractible comprises manipulation of one or more actuator elements connected to the recovery catheter by movement of the one or more actuator elements with respect to the recovery device.